/**
 * Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
 *
 * You are hereby granted a non-exclusive, worldwide, royalty-free license to use,
 * copy, modify, and distribute this software in source code or binary form for use
 * in connection with the web services and APIs provided by Facebook.
 *
 * As with any software that integrates with the Facebook platform, your use of
 * this software is subject to the Facebook Developer Principles and Policies
 * [http://developers.facebook.com/policy/]. This copyright notice shall be
 * included in all copies or substantial portions of the software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package com.facebook.share.model;

import android.os.Parcel;

import com.facebook.share.internal.ShareConstants;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * Describes photo content to be shared.
 * 
 * Use {@link SharePhotoContent.Builder} to create instances
 */
public final class SharePhotoContent extends ShareContent<SharePhotoContent, SharePhotoContent.Builder> {
	private final List<SharePhoto> photos;

	private SharePhotoContent(final Builder builder) {
		super(builder);
		this.photos = Collections.unmodifiableList(builder.photos);
	}

	SharePhotoContent(final Parcel in) {
		super(in);
		this.photos = Collections.unmodifiableList(SharePhoto.Builder.readListFrom(in));
	}

	/**
	 * Photos to be shared.
	 * 
	 * @return {@link java.util.List} of {@link SharePhoto}s.
	 */

	public List<SharePhoto> getPhotos() {
		return this.photos;
	}

	public int describeContents() {
		return 0;
	}

	public void writeToParcel(final Parcel out, final int flags) {
		super.writeToParcel(out, flags);
		SharePhoto.Builder.writeListTo(out, this.photos);
	}

	@SuppressWarnings("unused")
	public static final Creator<SharePhotoContent> CREATOR = new Creator<SharePhotoContent>() {
		public SharePhotoContent createFromParcel(final Parcel in) {
			return new SharePhotoContent(in);
		}

		public SharePhotoContent[] newArray(final int size) {
			return new SharePhotoContent[size];
		}
	};

	/**
	 * Builder for the {@link SharePhotoContent} interface.
	 */
	public static class Builder extends ShareContent.Builder<SharePhotoContent, Builder> {
		private final List<SharePhoto> photos = new ArrayList<SharePhoto>();

		/**
		 * Adds a photo to the content.
		 * 
		 * @param photo
		 *            {@link com.facebook.share.model.SharePhoto} to add.
		 * @return The builder.
		 */
		public Builder addPhoto(final SharePhoto photo) {
			if (photo != null) {
				this.photos.add(new SharePhoto.Builder().readFrom(photo).build());
			}
			return this;
		}

		/**
		 * Adds multiple photos to the content.
		 * 
		 * @param photos
		 *            {@link java.util.List} of
		 *            {@link com.facebook.share.model.SharePhoto}s to add.
		 * @return The builder.
		 */
		public Builder addPhotos(final List<SharePhoto> photos) {
			if (photos != null) {
				for (SharePhoto photo : photos) {
					this.addPhoto(photo);
				}
			}
			return this;
		}

		@Override
		public SharePhotoContent build() {
			return new SharePhotoContent(this);
		}

		@Override
		public Builder readFrom(final SharePhotoContent model) {
			if (model == null) {
				return this;
			}
			return super.readFrom(model).addPhotos(model.getPhotos());
		}

		@Override
		public Builder readFrom(final Parcel parcel) {
			return this.readFrom((SharePhotoContent) parcel.readParcelable(SharePhotoContent.class.getClassLoader()));
		}

		/**
		 * Replaces the photos for the builder.
		 * 
		 * @param photos
		 *            {@link java.util.List} of
		 *            {@link com.facebook.share.model.SharePhoto}s to add.
		 * @return The builder.
		 */
		public Builder setPhotos(final List<SharePhoto> photos) {
			this.photos.clear();
			this.addPhotos(photos);
			return this;
		}
	}
}
